All you know how to grow corn and sunflowers. But it is unlikely that many people imagine how their cleaning. On large areas, of course, operate harvesters and other machines, but on a small, say, a school or experimental plots and to this day I use the lawn shears. However, very tedious and, more importantly, unproductive job. Our young technicians Roofing Sinkevich and Sasha CATIA set out to develop a manual mower for krupnogabaritnykh plant. They came up with a simple and interesting design, which formed the basis of the mechanism. Finally lawn mower “took shape” after a number of improvements and tweaks suggested by Sasha Malkov and Sergey Bolgarskom: now this is a real unit, which not only decimated, but even carefully lays the cut plants.
MANUAL LAWN MOWER
Several years ago I came across a photograph of an unfamiliar race car. Machine interested, but no additional information about the photo caption does not contain, and the search for them has long remained unsuccessful. But once the case got me with one of the designers of this car. With the help of the necessary information about the car focused on my desktop and now I can offer to the hobby to make it the trace option.
Readers already familiar with the workings of the Chisinau children’s club “Firefly” of the Ministry of Moldova. Last year, the “M-K” printed drawings, model air combat “Firefly”. This simple, durable and unpretentious bouzouki like many beginning modelers, as we judged by the numerous sent to our club e-mails.
Kayak in the open sea… Not even if is”? Well, it depends on what kind of kayak. “Petrel were” — the lightest boat, the description of which is offered to your attention, is not afraid of windswept expanse or sea waves. The survivability of the ship is ensured by its design. Add to this the accuracy on the course and the safety for crew and cargo in extreme weather conditions. In spite of the elongated body, the boat easily, as sailors say, “clears” from the wave, and has a good “viable” even in cool water shafts. All control systems work quickly and reliably, and steering is effective in any maneuver.
It was called hydrocardon, although it is more like a kind of water motorcycle. Built is sports microsode the Donetsk regional station of young technicians in the circle of “Small shipbuilding.” As reported in the editorial of the Director of the station N. Vladimir Vasilyev, the club celebrates this year its fifteenth anniversary. Initially, in the classroom young engineers studied the structure and purpose of a variety of sports and pleasure craft, have developed a new design .mostly motor boats. The work aroused great interest guys, but I felt that something still was missing. It soon became clear that the young “shipbuilders” I wanted not only to create a motor court, but also to experience them and more — to compete: whose machine was faster, so, technically perfect.
RC model-polyopia motor. Motors together with batteries increasingly gaining ground in the modeling. Today, the growing power motors and improved battery options allow you to create a comprehensive, well-flying model aircraft, including radio controlled.
The attention of many modelers are attracted to the photos (“M-K”, No. 10, 1979) on the international competition teams of the socialist countries on aviamodelling sports. The editors have received many letters with the request to give more details about the model of the winner of these competitions the master of sports of international class Anatoly Kolesnikov from Frunze. To fulfill these wishes. L. Kolesnikov talks about his Cordoba flight.
Every year fewer and fewer aircraft with piston engines. Lightweight, economical running on cheaper than gasoline, fuels, jet engines replacing piston even from agricultural aviation. But in any aeromodelling competition still reigns “piston era”. On kartodromo you will see the masterfully made copies of “Ilya Muromets”, “Nieuport”, I-15, Yak-3… do Not attempt to only search for a model jet aircraft — the era of rapid modern machines in modeling has not yet arrived. The reason is the lack of jet motors or at least their imitators: piston motors with impellers. Unfortunately, numerous attempts by modelers to create quasirational the engine was not successful — usually these devices have extremely low efficiency and did not develop the thrust required for steady flight of the model.
With all its advantages of an inflatable boat of any design has the same General disadvantages: Shorty wislica, turtle speed and bad handling. From all of them at once we managed to get rid of, adapting your boat “Dive-4” under sail: with him she became and the faster and more manageable. And actually upgrading was quite simple and compact, that is blended with the amenities characteristic of inflatable boats.